How can I train with my custom dataset

Author, could you please tell me how to use my own data for training? I really need this training code to train my own model

Look at the existing training scripts and dataset loaders in the repository to understand the data format. The issue asks for training code, so start by examining the README and any examples. Check if there's a `train.py` or similar script and see how it loads data. The goal is to document the steps to prepare a custom dataset and run training.

索引モデルが issue の本文から書いたものです。